Water-heater jacket



" Patented `Nov., 116, 'I

Y the'atmosphe're are provided, into thev'dwellf. j i Y VVention lis `to make the jacket` so VtliatJt-he Y *soigner le. rroYTgcii oen-Leni), crimson-,nia Assis-non 'ro or nos antennas, entrepierna; .a ccaroaefrion or eifiiiiroania.;

Appiication meaning/Venter 23, 19251 siai -NjyoQs-ei.-

My invention relates to jacketsfo'l Wtel" heaters, vand it y'has' special reference to jackets adapted for use 'y in :connection with thattypeof waterlieaters tliatare provided with heatingcoil uiiitstherein.V

In ordinary automatic water heaters, if tliereis noipiovision made fordiyerting'the increased air pressurefrom theflanie of the l burner or for .relieving such air pressure when' strong winds are blowing, theV air will force itself downwardly through the vent of the heater Vand impinge upon the llame of the pil-ot light and the flamefof the'burner vand will .often extinguish one or both flames or force the carbon monoxide and 'dioxide gases, for the escape of which the vents to ingsequippedwith such heaters', with the result Vthat the lives of the persons vinthe dwellings are jeopai'dized.

Also, in such heaters itis often necessary [to remove the jacket for the piirposeof repairing parts of the heaters.- A serviee'man doing this workis'then compelled to remove several nuts Land: bolts before Vhe succeeds 4 removing' the jacket. Sometimes' the repairis verf,T` 'simple and consumes only a fraction of'thetimeexpended 'on therenioval of the fjaclret. Thus, much annoyance and inconvenience as well as unnecessary" expense .are caused` the persons that have such heatersV installedin their dwellingsfr. ,i

An impo tant object of my invention isto construct a heater jacket in such a manner that, when rback drafts occur in'the'vent to. the heaterjf-tlie increased air pressure is di-j verted from the burner andthe pilot light so thatiieither of them can be extinguished thereby..v 1 1 i fuitherfobjectof the' invention is to .provide for air to pass between the walls of the jacket and whichair tends to cool the outer wall so thatV noV insulating material is required between-the walls, thus making-the jacketinexpensive,` llighter` and. easier toy A* handle-'aswell as `easier toassenible Another object of the invention ,is tol constriictacomplete jacket removableas-'aunit that ispadapted to supported-upon*and'by' aj-heat'eibase without necessitating fthe" use of nuts and bolts therefor, and to provideV la sealy between the top off the 'base'and the bottom ofthe j ache-t so' that7 when th'ejacket enit is placed.' in position' onrithe bassi.; .the

:the walls. i.

weight of the jacket alone or the cornl'iined weight ofthe jacket andthe. vent pipe vcon"- Vnected `therewith is suiicientto make a tight i-ieizfr HEATER sonnen-Y,

seal betwe'en'the two bodies. The latter feai ture'preventsfside esca-pement of any flare from the j burner of the heater or otherin- Y' tercommunication with theV space between v vIt is stillfurther thejpurpose of'inyfinvention tov provide the bottom ineinberof the jaclzetywith a peripheral flange adapted to fit baround the base of theheater and vto serve as an auxiliary retaining'ineans for v legs driven into'the base or a meansad'apted A ltofprevent the legs'from .laterally fworli'ng foutof-engageinent withv the base. 'I'.A. f y ,Y An additionalgimportant object of my. .in-

as thev invention is unfolded in the following detailed ydescription having reference to the accompanying drawings in'whicliz Figure 1y is a side elevation'fof an aiitomatie` water-heater of an improved type and 'provided with a jacket'cconstructed yaccording to the principle of my invention;

vFig; 2 is a vertical7 midsectional"view of the'jaclet unit Vshown in 'Fig'. l; v i' if Fig. 3 is a sectional plan-of thejaclret unit, the viewbeing taken4 along` thev` line Fig.Vv fis lanother sectional jaoketunit, the Vviewfbeing` taleiifalong the line Jp-ll of Fig. 1 and looking in the direc*- ti'on of the arrows; Y 'f 4` Fig 5 lis a vertical section through one i lside of the 'jacket unit and may-be considered'as a'view taken along the linef of,

Fig. Llvto primarily show'one Vof'tl'ie'securing elements yin the assembly ofthe jacket.;

`: Fig. V6 is a-.sectional view taken alongtlie and liiie 6-*6 of Fig. 1 and showsl the inclosure .extending between the .outer andthe inner l-wallfsof the"jacletjfor"housin y y light thebase and burner-for. the heater rfv the pilot also fragrnentally shown..

vwill l nowv vdescribe LLthe figures Ythe drawing I-in detail by reference numeralsjj plan v of the tra In a'fwater'heater37,'fwhichis preferably y of theV automat-ic type and-'ofzanimproved l construction, the heating-coil unit 8 there- Vtionen the base.

j the purpose of'spacing and positioning the Y On its underside the bottom member 16 is provided with a peripheral flange 26,

which surrounds the upper member 9 of the base vso that openings V21 in said bottom member are adapted to communicate with the atmosphere lthrough the,space between the flange 11 of the `base r.and thelsaid flange w20, 6. Another peripheral flange 22 is alsoprovided on the bottom member 16 at thetop thereof for the purpose of engaging the outside of the outer wall 17. Y

The top `member 175, which is provided with the usual vent 23 centrally therein, has a corresponding flange 24 also adapted to engage the-outside'of the outer wall 17, and spaced from the .outer flange 24, the top member 15 has onl itsunderside a number of lugs 25 yand`26, each of which has formed thereon a step portion 27, spaced from the underside of the top member and adapted to rest on the top edge of the innerfwall 18 so as to provide a space between the top lof the inner walliand the top member. Each of the lugs 25 and 26 has also a shoulder portion 28, adaptedl to engage the outside of the inner wall 18. The lugs 26 are further provided withk openings 29 adapted to receive therein the hook ends 30 of rods 31, which at theirother ends have. threaded engagement :with nuts 32. In the bottomv member 16 is a central opening 33, the wall of which `is Vadapted to engage the outside of the inner wall 18 so that by the lugs 25 and 26 and the` wall of the opening 33 the inner wall 18 isspaced Afrom the outerwall 17,

and the inner vwall 18 has ron its outside, and Y integral with the wall, projectionsl 34, which may be struck-up portions of the wall, for

said inner wall on the top of the bottom member 16.

At present I kprefer to form the lperipheral flange 2Oy in the bottom member 16 with outstanding portions 35, Fig. 3, recessed lonjthe inside as at 1 2, Fig. 2, adapted to close over ,the upper part et the less 10, when they have been secured-'to the base, 'order toV ,Fevent there. fiere' werkte-e lense 01 the v base.

Adapted a. raiser ne ,inge @ein 'thi-Iter merflbll, er@ heles tee een jteleeni .le Ytelf the :re-rees@ et" reen-vins eee.

et ne rees tra@ that inthe assemblage of the jacket, after the nouter and the inner walls have been placed in proper position upon the top niember, the lhook ends 30 may be `slipped into the openings 29 in the lugs, and'tlie'straight For convenience in lighting the pilot light' 39 .and also for' the purpose of protecting` he flame of the pilot lightfrom draft there l is through the jacket an opening adapted to be in alignment with the flame of the pilot light vandk to house thek latter.. This .opening is formed by the wall -40 of an in- .olosure 41in Vfront of the jacketand at the top of the bottom member... The wall -40 of this inclosure extends Yfrom the outer to the innerv wal-l 'an-diras V'aj-front Afla-nge which overlaps the outer wall 1T and is vsecured thereto v by lany-,suitable means, such as the screw 42, The latter screw also serves as a pivot for shutter 44, which is provided with a disk 45 of mica or othersutable transparent, iireproof material, so that the flames `of the pilot light and the burner 36 ofthe heater 10'may be observable therethrough at all times.

In the underside of the lower member 16 a groove is formed therearound to receivea packing 13of asbestos cord or equally suitable material, the purpose of which is to forma seal between the jacket unit and the base as shown to advantage in FiO. 6 so icc that when the burner 36 side-flares, which is quite common, the flame will be prevented from flaring radially outwards by reason of.

.the said seal 13. f

1t should be further noticed that, if any back draft occurs through the vent 23 .tol the heater, the heater-coil unit 8 sufiiciently resists .the draft to cause it to be diverted to and through thepassage provided between the -top edge of the inner wall 18 andthe` thus the back draft is lthereby prevented. j

from reaching and extinguishing the flames flOll the burner and pilot. Y

The mechanism 14 supported .on the base 9, Fig. 1, i's the automatic control valve for the heater and 37 is the gas mixing chamber for the burner 36.]

elaine as new andv desire to 'secure by 'Let'-v ters Patent r of the United States the fol# lowingz,V Y

1. les wat-efheater `jacket ,compris-ing :a top me' ber-hai 'ng ak vent `c',entrally therein;

naar nausea sa ee-eee wan spaced Having Vthus described my invention, l`

Aio

securing said members and walls'together,l

whereby a removable jacket unit is formed for the heater.

2. A. water-heater jacket comprising an inner cylindrical wall and an outer cylindrical wall; a top member having a ventbentrally therein and a peripheral iiange adapted to engage the outside of the outer wall; concentric lugs on the underside of the top member adapted to engage the outside of the inner wall and to space the inner wall from said top member; a bottom member having an upper peripheral ange adapted toen-V gage the outside of the outer wall and being also providedwith a lower peripheral flange adapted to lit over a support therefor,

.whereby the outer wall by its engagement with the iange .of the top member and the upper iiange ofthe bottom member will be spaced from said inner wall; and means for securing said members and walls together, whereby a removable jacket unit is formed for the heater. Y

3. A. water-heater acket comprising an in-v ner cylindrical wall and an outer cylindrical wall; a top member having a vent centrally therein 'and a `peripheral flange adapted to engage the outside of the outer wall; concentric lugs on the underside of the top member adapted to engage the outside of the inner wall and t-o space the inner wall from said top member, some ot' said lugs being provided with openings therein; a bottom member Vadapted to fit around said inner walll and having an upper peripheral flange adapted to engage the outside of the outer wall and being also providevwith a lower peripheral flange adapted to init over a sup-v port therefor, whereby 'the outer wall by its engagement with the flange of the topv member and the upper flange of the bottom member will be spaced from said inner wall; pro` jections on said inner wall for engagement CFI with the top of said bottom member; and

rods, each having a bend at one end adapted for engagement with the opening in one 'of said lugs and being threaded at its other end for receiving a nut thereon, and the bottom member having openings for receiving said rods therein sol thatby the engagement of said nuts and rods said members and walls. maybe secured together, whereby a remov- Y able jacket unit is formed for the heater.

Ll. In a water heater provided with a base,

a jacket comprising a vented top member; an inner and outer wall spaced from each other; and. the top of the inner wall spaced from the top member so that the vent and the space between the walls are in communicatien; a bottom member having openings therein communicating with said space' and beingadapted to be supported on the top Vof the base lso that the said openings communicate with the atmosphere; means for securing said members and wallsv together; and means for sealing said bottom member j on the said top of the base `for the heater.

5. Ina water heater provided with a .pilot and a base, a jacket comprising a vented topi` member; an inner and an outer wall spaced from each other, and a top Yof the inner wall spaced 1from the top member so that the vent and the space between the walls are in communication; a bottom vmember having openings therein communicating with said space, said bottom member being adapted to fit over the top of the heater base v so that the openings in the bottom member communicate with .the atmosphere; a walled inclosure at the bottom of, and extending between, said outer and inner walls and adapted to house the flame of the pilot light ci' the heater; and means Vfor securing said members land outer and inner walls together so as to form the. completed jacket of the heater.

6. In a water-heater provided with a baseA supported. on legs, a jacket comprisinga vented top member; an innervwall and an outer wall spaced from each other, and the top of the inner wall spaced from the top member so that the vent and thespace b-etween the walls are in communication; a

bottom member having openings in commimica-tion with said space, said bottom.

member being adapted to iit on the top of v the heater base and having a peripheral flange adapted-to tit around the top ofl the base so that the openings in the bottom i member communicate with the atmosphere, and the flange provided with means for preventing the legs of the base from working out of engagement with said base; and means for securing said members and walls together, whereby a removable jacket'unit vis `formed for the heater. v

7. In' a water heater provided with ingcoil unit and abase, a jacketfcomprising a vented top member; an inner wall and an outer wall spaced from each other, and the top of the inner4 wallspaced from the top 'Y member so that the .vent and the spaceV be tween the walls are m communication; a

bottom member having openings thereiny communicating with the space between said walls, said bottom member being adapted to tit over the top of the heater base so that the Vopenings in the bottom member lcommunicate with the atmosphere; the inner wall being adapted to it slidably over the outer vcoil in the .heating-coil unit of the heater so that the coil serves as a means'for gui-ding the jacket into place on said'base; and` means fory securing said members and 'walls jacket unit together, whereby a removable is formed. forthe heater.' j l In testimony whereof I aiiix my signature.

' ROBERT HOYT. 

